package cn.zhz.interceptor;


import cn.zhz.pojo.User;
import cn.zhz.tools.Constants;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import org.apache.log4j.Logger;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class SysInterceptor extends HandlerInterceptorAdapter {
    private Logger logger=Logger.getLogger(SysInterceptor.class);

    public boolean preHandle(HttpServletRequest request,
                             HttpServletResponse response,
                             Object handler)throws Exception{
        logger.debug("SysInterceptor preHandle!");

        HttpSession session=request.getSession();

        User user=(User)session.getAttribute(Constants.USER_SESSION);

        if (user == null) {
            response.sendRedirect(request.getContextPath()+"/401.jsp");

            return false;
        }

        return true;
    }

}
